I have downloaded a medium quality sync of a movie with no issues. When I play it on the iPad it works with no issues, when I try to cast it to my Roku Stick (I'm away from my Plex Server) I'm getting the following error:
Your Plex Media Server doesn't support video transcoding.
Screenshot of error:
http://i.imgur.com/BWguWs1.jpg?1
Screenshot of video quality on Roku Stick:
http://i.imgur.com/djDR010.jpg?1
iPad Log files after the error takes place:
https://dl.dropboxusercontent.com/u/1544584/PlexDebugInfo.zip
Another forum post with this issue that was unsolved but no ipad logs were attached like mine:
https://forums.plex.tv/discussion/177800/streaming-from-ipad-plex-4-to-roku-stick-stops-with-transcoding-unavailable-message